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            <h2 class="title" style="clear: both"><a id="debug_compile"></a>Compile-time configuration</h2>
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      <p>
        There are three compile-time configuration options that
        assist in debugging Berkeley DB and Berkeley DB
        applications:
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            <span class="term">
                <a class="link" href="build_unix_conf.html#build_unix_conf.--enable-debug">--enable-debug</a>
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          <dd>
                If you want to build Berkeley DB with <span class="bold"><strong>-g</strong></span> as the C and C++
                compiler flag, enter --enable-debug as an argument to
                configure. This will create Berkeley DB with debugging
                symbols, as well as load various Berkeley DB routines
                that can be called directly from a debugger to display
                database page content, cursor queues, and so forth.
                (Note that the <span class="bold"><strong>-O</strong></span>
                optimization flag will still be specified. To compile
                with only the <span class="bold"><strong>-g</strong></span>,
                explicitly set the <code class="literal">CFLAGS</code>
                environment variable before configuring.)
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          <dt>
            <span class="term">
                <a class="link" href="build_unix_conf.html#build_unix_conf.--enable-diagnostic">--enable-diagnostic</a>
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          <dd>
                If you want to build Berkeley DB with debugging
                run-time sanity checks and with DIAGNOSTIC #defined
                during compilation, enter --enable-diagnostic as an
                argument to configure. This will cause a number of
                special checks to be performed when Berkeley DB is
                running. This flag should not be defined when
                configuring to build production binaries because it
                degrades performance.
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            <span class="term">
                <a class="link" href="build_unix_conf.html#build_unix_conf.--enable-umrw">--enable-umrw</a>
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          <dd>
                When compiling Berkeley DB for use in run-time
                memory consistency checkers (in particular, programs
                that look for reads and writes of uninitialized
                memory), use --enable-umrw as an argument to
                configure. This guarantees, among other things, that
                Berkeley DB will completely initialize allocated pages
                rather than initializing only the minimum necessary
                amount.
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